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STOCK-BASED COMPENSATION - Summary of Restricted Stock Unit Activity (Detail) - Restricted stock units - $ / shares
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Restricted stock units outstanding at December 31, 2019 (in shares) 1,974,575    
Granted (in shares) 495,622    
Released (in shares) (582,151)    
Forfeited (in shares) (17,040)    
Restricted stock units outstanding at December 31, 2020 (in shares) 1,871,006 1,974,575  
Weighted average grant date fair value      
Restricted stock units outstanding at December 31, 2019 (in dollars per share) $ 28.54    
Granted (in dollars per share) 30.55 $ 28.51 $ 28.51
Released (in dollars per share) 28.35    
Forfeited (in dollars per share) 29.60    
Restricted stock units outstanding at December 31, 2020 (in dollars per share) $ 29.12 $ 28.54